James h



J. H. MARSH.

FOUNTAIN PEN.

APPLICATION FILED MA-Y13, 191s.

Patented Dem-28, 1920.

a nvawifo c JamesHWZ mZ UNITED STATES,

PATENT OFFICE.

JAMES H. MARSH, OF NEW YGRK, N. Y.

FOUNTAIN -IE'EN.

Application filed May 13,

To all whom it may concern Be it known that 1, James H. MARSH, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Improvements in F ountain-Pens, of which the following is a.- specification.

This invention relates to a fountain pen in which a pigment coacts with a mixing chamber, and a reservoir 'feeds a sufiicient quantity of water to the mixing chamber where it dissolves small portions of the pigment while writing.

The invention is designed to provide means for feeding fractional parts of the water from the reservoir to the mixing chamber when the pen is held downward, so that the ink will combine with the Water when writing.

The fundamental object of the invention, is to provide the barrel of the pen with means for holding a quantity of water which does not mix with the pigment until the pen is held downward or ready to write. A further object of the invention is to provide a stick of pigment completely isolated from the water until ready to write and rotary means for actuating the stick to coact with the mixing chamber.

The invention more particularly" resides in the novel combinations hereinafter described and claimed, reference being made to the accompanying drawing in which:

Figure 1 represents a vertical section of a pen embodying this invention.

Fig. 2 is a sectional side elevation of a slotted sleeve.

Fig. 3 is a side elevation of a tubular spiral member.

b Fig. 4 is a detail front elevation of a feed Fig. 5 is a horizontal section taken along the line 5 5 of Fig. 1.

' Fig. 6 is a similar view taken along the line 6 6 of the same.

Fig. 7 is a similar view taken along the line 7 7 of the same.

Fig. 8 is a similar view taken along the line 8 8 of the same.

. In this drawing the numeral 10 designates a barrel having a screw cap 11 to give access to the interior of the barrel. The barrel is provided with a compartment 12 made to contain water which can be dropped into the top when the cap is unscrewed.

Below the compartment in the barrel is Specification of Letters Patent. Patented Dec, 28, 1920,

1918. Serial No. 234,129.

arranged a tubular member 13 having spiral grooves 11 and a finger member 15 for ,ro-

' ment 20 is secured to the ring by inserting one end of it into the ring where it is held by the resiliency of the ring.

The lower end of the barrel is equipped with a holder 21 suitable for the insertion of a feed bar 22 having a mixing chamber 23 covered by the shank 24 of a pen nib. The feed bar fits tightly into the holder and it includes a screw nipple 25 for engagement with an interior screw thread located at the lower end of the slotted sleeve. A channel 26 situated in the slotted sleeve connects the water compartment with the mixing cham: ber and a channel 27 located in the nipple of the feed bar cooperates with the lower end of'the pigment.

As shown in Fig. 1, the pen is equipped with a cap 28 which when the pen is in use can be slipped over the top of the barrel, andwhen it is desired to carry the pen in the pocket, it can beinserted over the bottom end to cover and protect the pen point.

It will be seen that when the member 15 is rotated it operates the spiral tube to move the pin 18 in a rectilineal path along the slot 17, thus forcing the lower end of the pigment into the upper part of the chamber located in the feed bar. When the pen point is positioned downward to contact with the paper while writing the water from the compartment 12 will iiow into the channel 26 thence to the mixing chamber in the feed bar and some of it through the medium of the channel 27 will contact with the lower end of the pigment. This solution continually flows in the mixing chamber when writing to combine with the water, and continuously trickles through the interstices of the pen shank to the pen point.

The feed bar thus controls the flow of ink from the mixing chamber to the dpen point. When the ink stick has been use it can be replaced by another merely by removing the holder 21 and inserting the end of the stick into the resilient clamp. The mixing chamber constitutes a reservoir for holding a quantity of water converted into ink by its contact with the end of the stick, and the feed bar permits minute portions of the mixture to gravitate to the pen ,point. It will be r'eadlly understood that the upper flanged portion of the slotted sleeve could be cemented to the barrel so as to prevent any of the water from entering the joints a chamber for mixing a pigment, of a compartment forholding aliquid connected to the mixing chamber, and manually controlled means for feeding a pigment to the mixing chamber.

2. In a fountain pen the combination with a feed bar-having a chamber for mixing a pigment, of a compartment for holding a liquid connected to the mixing chamber, and

manually controlled means for feeding apigment to the mixing chamber.

3. In a fountain pen the combination with a feed bar having a mixing chamber, of a compartment for holding a liquid connected to the mixing chamber, and means for feedinto the reservoir.

ing a stick of pigment to the mixing chamber.

4. In a fountain pen the combination with a feed bar having a mixing chamber, of a compartment for holding a liquid connected to the mixing chamber, and rotary means for feeding a stick of pigment to the mixing chamber.

5. In a fountain pen the combination with a feed-bar having a mixing chamber, of a reservoir connected to the mixing chamber, and a spiral rotary device for feeding a stick of pigment in a rectilineal path toward the mixing chamber.

6. In a fountain pen the combination with a barrel having a compartment for holding a liquid, a spiral sleeve rotatably mounted in the barrel below the compartment, a pigment securing clamp slidably connected to the spiral for feeding-fa pigmenttoward the mixing chamber, and a channel leading from the compartment to the mixing chamber.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JAMES H. IMARSH.

Witnesses:

GRACE DE Von,

WILLIAM MILLER. 

